堆石料的应力-应变特性及其三维破碎本构模型

姚仰平; 黄冠; 王乃东; 刘汉龙

doi:10.13204/j.gyjz201109003

堆石料的应力-应变特性及其三维破碎本构模型

doi: 10.13204/j.gyjz201109003

1.
1. 北京航空航天大学交通科学与工程学院,北京 100191;
2.
2. 中铁四院集团南宁勘察设计院有限公司,南宁 530003;
3.
3. 河海大学岩土工程研究所,南京 210098

基金项目:

国家自然科学基金项目(50879001,10872016);国家自然科学基金重点项目(90815024)

详细信息

作者简介:
姚仰平，男，1960年出生，博士，教授，博士生导师。E－mail:ypyao@buaa.edu.cn

中图分类号: TU502
计量
- 文章访问数: 91
- HTML全文浏览量: 11
- PDF下载量: 96
- 被引次数: 0
出版历程
- 收稿日期: 2010-06-06
- 刊出日期: 2011-09-20

STRESS-STRAIN CHARACTERISTIC AND THREE-DIMENSIONAL CONSTITUTIVE MODEL OF ROCKFILL CONSIDERING CRUSHING

1.
1. Department of Civil Engneering,Beihang University,Beijing 100191,China;
2.
2. Nanning Branch of China Railway Siyuan Survey and Design Group Co.Ltd,Nanning 530003,China;
3.
3. Geotechnical Research Institute,Hohai University,Nanjing 210098,China

摘要

摘要: 综合已有的研究成果，从压缩、剪胀和强度三方面分析颗粒破碎对堆石料应力-应变特性的影响。基于堆石料的变形和强度特性，引入新的硬化参数H，并推导出相应的屈服函数表达式，进而提出一个能够考虑堆石料颗粒破碎影响的弹-塑性本构模型。利用基于空间滑动面准则(SMP准则)的变换应力方法将模型进行三维化，并参照某堆石料大三轴试验结果对三维破碎本构模型的可行性进行验证。最后，利用三维破碎本构模型对不同应力状态下堆石料的应力-应变关系进行模拟。
- 堆石料 /
- 颗粒破碎 /
- 应力-应变特性 /
- 三维本构模型
Abstract: Integrating existing research results,such as compressed,dilatancy,and strength,the influence produced by particle breaking on stress-strain characteristic of rockfill was analyzed. Based on the deformation and strength characteristics of rockfill,a new hardening parameters H was introduced,and corresponding yield function was derived,then a elastic-plastic constitutive model was proposed which could consider the impact of rockfill particle breaking. Based on the transformation stress method on SMP criterion and referring to triaxial test results of rockfill,it was validated the feasibility of three-dimensional constitutive model considering crushing. Finally,the stress-strain relationship of rockfill was simulated by using three-dimensional constitutive model considering crushing for rockfill under different stress states.
- rockfill /
- particle breaking /
- stress-strain characteristic /
- three-dimensional constitutive model

HTML全文

参考文献(16)

Duncan J M,Chang C Y.Nonlinear Analysis of Stress and Strain in Soils[J].Journal of the Soil Mechanics and Foundations Division,ASCE,1970,96(5):1629-1652.

[2] Corotris R B,Farzin M H,Krizek R J.Nonlinear Stress-Strain Formulation for Soil[J].ASCE,JGED,1974,100 (9):994-1008.

[3] 张启岳,司洪洋.粗颗粒土大型三轴压缩试验的强度与应力－应变特性[J].水利学报,1982(9):23-30.

[4] 高莲士,汪昭化,宋文晶.非线性解耦K-G 模型在高面板堆石坝应力变形分析中的应用[J].水利学报,2001(10):1-7.

[5] 朱百里,沈珠江.计算土力学[M].上海: 上海科学技术出版社,1990: 58-59.

[6] 钱家欢,殷宗泽.土工原理与计算[M].北京: 中国水利水电出版社,1996: 78-79.

[7] 刘萌成,高玉峰,黄晓明.考虑强度非线性的堆石料弹塑性本构模型研究[J].岩土工程学报,2005,27(3):294-298.

[8] 米占宽,李国英,陈铁林.考虑颗粒破碎的堆石体本构模型[J].岩土工程学报,2007,29(12):1865-1869.

[9] Yao Y P, Yamamoto H, Wang N D.Constitutive Model Considering Sand Crushing[J].Soil and Foundation,2008,48(4):603-608.

[10] 程展林,丁红顺,吴良平.粗粒土试验研究[J].岩土工程学报,2007,29(8):1151-1156.

[11] 张兵,高玉峰,毛金生,等.堆石料强度和变形性质的大型三轴试验及模型对比研究[J].防灾减灾工程学报,2008,28(1):122-126.

[12] 秦红玉,刘汉龙,高玉峰,等.粗粒料强度和变形的大型三轴试验研究[J].岩土力学,2004,25( 10):1575-1580.

[13] De Mello V F B.Reflections on Decisions of Practical Significance to Embankment Dam Construction[J].Geotechnique,1977,27(3):279-335.

[14] 姚仰平,路德春,周安楠,等.广义非线性强度理论及其变换应力空间[J].中国科学: E 辑,2004,34(11):1283-1299.

[15] Yao Y P,Matsuoka H,Sun D A.A Unified Elastoplastic Models for Clay and Sand with the SMP Criterion[C]/ /Proc 8th Australia-New Zealand Conference on Geomechanics.1999: 997-1002.

[16] Matsuoka H,Yao Y P,Sun D A.The Cam-Clay Models Revised by the SMP Criterion[J].Soil and Foundation,1999,39 (1) :81-95.

施引文献

资源附件(0)

访问统计